The formula for the area of a circle is

To break it up, its π×r×r=A
The radius is 12inches
So the equation is 3.14×12×12
3.14×12=37.68
37.68×12=452.16
452.16 rounded is 452
A=452inches
The coefficient for y is -5 in the first equation, +2 in the second equation, so the least common multiple is -10
A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot.
Answer:

Step-by-step explanation:
The depth function is:

After 3 minutes, a submarine had descended to −320 feet.
This means that
. So


After 8 minutes, the submarine had descended to −420 feet.
This means that
. So


From the first equation:

So





And

So

Answer:
The slope is -1
Step-by-step explanation:
Anytime the x-intercept values have 0 in it, the y-intercept value which is below/above the x-values (Which in this case is -1) is the y-intercept.